Fusible plugs are installed in fire-tube boilers to _____.
- Aprovide a means of draining the boiler
- Bwarn the engineer of low water level
- Ccool the crown sheet at high firing rates
- Dopen the burners electrical firing circuits
Fusible plugs are installed in fire-tube boilers to _____.
1、The wooden plug inserted in the vent o
The wooden plug inserted in the vent of a damaged tank should be removed if you are going to ().Apump from the damaged tankBfight a fireCabandon shipDuse the crossover system
2、Fusible-link fire dampers are operated
Fusible-link fire dampers are operated by().A8the heat of a fire melting the linkBa break-glass and pull-cable systemCelectrical controls on the bridgeDa mechanical arm outside the vent duct
3、You are about to plug a multi-terabyt
You are about to plug a multi-terabyte non-CDB into an existing multitenant container database (CDB) as a pluggable database (PDB).The characteri...
proxy plug-in的作用是()。A使得webserver提供静态内容服务B使得Weblogic提供动态内容服务C负载均衡请求D以上所有
5、A wooden plug fitted tightly in the ve
A wooden plug fitted tightly in the vent of a damaged tank may prevent the tank from().Afilling completelyBdeveloping free surfaceCdeveloping free surface momentDcollapsing
6、Fusible-link fire dampers are operated
Fusible-link fire dampers are operated by().Aa break-glass and pull-cable systemBelectrical controls on the bridgeCa mechanical arm outside the vent ductDthe heat of a fire melting the link